Lubricant



UNITED STATES PATENT OFFICE This invention LUBRICANT Carl F. Prutton, East 01 by mesne assignments, ration,

No Drawing.

Serial No. 635

38 Claims.

relates to lubricants, and more particularly to compositions for use in connection with the lubrication of internal combustion engines and motor 5 objects of the invention vehicles; and it is among the to provide compositions obviating the disadvantages of the usual petroleum oils.

Other objects and advantages will appear as the descripti on proceeds.

To the accomplishment of the foregoing and related ends, the features hereinaf larly pointed out scription setting ments of the invention,

however, of but a invention, then, consists of the ter fully described, and particuin the claims, the following deforth in detail certain embodithese being illustrative, few of the various ways in which 'the principle of the invention may be employed.

In accordance with my invention, a halogenated ring compound is incorporated with a mineral oil base. heavier body a the character Such oil may be of lighter or of s may be desired, of service in view.

depending upon The advantages of the invention may be realized in degree with able halogenated chlorinated compo stance, mono-chlorbenzene, di-

tably the ortho any of the commonly avail-- ring compounds, but preferably unds are employed, as, for inchlorbenzene, nocompound, chlor-naphthalenes and chlor-diphenyls, also chlorinated homologs of the above, as

well as chlorinated substituted benzene, chlorinated substituted naphthalene such as alpha substituted di-ph -methylnapthalene, and chlorinated enyl such as phenyltoluene.

It will be noted that the above enumerated examples of 0 preferably emplo type, i. e., compo structures and are also of the arbon ring compounds which are yed, are compounds of the aryl unds containing benzenoid ring type in which the halogen is directly attached to an atom which is a part of such ring struc As a matter 0 diphenyls and substituted ture. f convenience, the halogenated diphenyls, as well as halogenated substituted benzenes where two or more phenyl gro ups are directly linked, may be inclusively referred to as halogenated polyphenyls. The amount of halogenated compound may vary somewhat with the particular usage in view,

and may range up to for instance, about 20 per cent. temperatures.

Mixture occurs readily, and at ordinary The optimum amount of the halogenated compound will depend upon the halogen content of the compound, its

its effect on the is added; and also ricant is intende eveland, Ohio,

assignor, to The Lubri -Zol Corpo- Cleveland, Dhio, a corporation of Ohio Application September 30, 1932,

,701. Renewed July 27, 1933 the best concentration varies from about ntaining say to 25% of chlorine. A lubricant to be used on the valve mechanism will preferably contain a larger amount of such compounds, say 2 to 10%. The limit of the amount which will produce improved results depends upon the reduction in viscosity of theoil caused by the compound added. Certain of the more viscous compounds, for example, chlorinated diphenyl containing about 50% chlorine, may be added in amounts exceeding 10% without causing too great a reduction of the viscosity. In any case, the composition will have inferior lubricating properties if the loss of viscosity is too great as will result from the use of more than 20% of halogenated compounds of any occurs readily and at ordinary type. Mixture temperatures.

Compositions of the character described are capable of providing superior valve lubrication, and exhibit marked penetration while at the same time the advantage of low volatile oil body is had. For usage in internal combustion engines, a further particular advantage lies in the tendency of such a compounded oil to keep down carbon formation and hence, the lubricant comprising my invention is well adapted for use in motor fuel, i. e., the composition may be dissolved in gasoline or the like in order to lubricate the upper parts of the engine consuming such fuel. I'he cold test of such oils moreover is materially lowered, thus rendering them notably useful for engine lubrication in cold weather or in aviation also for transformer and electrical usage generally.

This application is a continuation in part of my co-pending application, Ser. No. 463,366 filed June 23, 1930.

Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.

I, therefore particularly point out and distinctly claim as my invention:-

1. A composition of matter which includes a lubricating composition having as a primary lubricating constituent a major proportion of lubricating oil base and a minor proportion less than 20%, based on the amount of such oil base, of a halogenated carbon ring compound.

2. As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of mineral oil and a. minor proportion less than 20%, based on such 5 45 I atom which is a part of an organic ring structure.

mineral oil, of a halogenated carbon ring compounda 3. A lubricating composition including a major proportionof a mineral oil base and a minor proportion less than 20% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound.

4. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from .25% to 10% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound.

5. A lubricating composition including a major proportion of a mineral oil base and a minor proportion less than 20% of a halogenated hydrocarbon and in which substantially all ofthe halogen present is in the form of a halogenated car bon ring compound.

6. A lubricating composition including a major proportion of a mineral oil base and a minor proportion from .25% to 10% of a halogenated hydrocarbon and in which substantially all of the halogen present is in the form of a halogenated carbon ring compound.

'7. As a composition of matter, a lubricating composition having as a primary lubricating con stituent the combination of mineral oil, and a minor proportion less than 20%, based on such mineral oil, of a halogenated organic ring compound of the type in which the halogen is directly attached to the ring structure.

8. A lubricating composition including a major proportion of mineral oil base and a minor proportion less than 20% based on such mineral oil of an organic halogen compound in which the halogen present is directly attached to an atom which is a part of an organic ring structure.

9; A lubricating or dielectric composition including a major proportion of mineral oil base and a minor proportion less than 20% based on such mineral oilof an organic halogen compound and in which substantially all of the halogen present in the composition is directly attached to an IOT'As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of mineral oiland a minor proportion less than 20%, based on such mineral oil, of a halogenated aromatic compound.

11. As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of mineral oil and a minor proportion less than 20% based on such mineral oil of a halogenated organic compound of the type in which the halogen is directly attached to a carbon atom which is a part of a six-.

membered organic ring structure.

12. As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of mineral oil and a minor proportion less than 20%, based on such mineral oil, of a halogenated aromatic compound of the type in which the halogen is directly attached to a ring structure. a

13. As a composition of matter, a lubricating composition having as a primary lubricatingconstituent the combination of mineral oil and a minor proportion less than 20% based on such mineral oil of a halogenated organic compound of the type in which the halogen is directly attached to a carbon atom which is a part of a ben- 14. As a composition oi-matter, a lubricating minor proportion of less than 20% composition having as a primary lubricating constituent the combination of mineral oil and a. minor proportion less than 20% based on such mineral oil of a halogenated organic compound of the type in which the halogen is directly attached to an atom which is a part of the ring structure of an aryl group.

15. As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of a major proportion of mineral oil and a minor proportion of a halogenated organic compound of the type in which the halogen is directly attached to a phenyl group. 16. As a composition of matter, a lubricating composition having as a primary lubricating constituent the combination of mineral oil and a minor proportion less than 20% based on the amount of such' mineral oil, of a halogenated organic compound of the type in which the halogen is directly attached to a naphthyl group.

17. A lubricating composition including a' base and a of a halogen compound in which substantially all of the halogen present is in the form of at least one commajor proportion of a mineral oil pound of the class including halogenated benzene,

halogenated substituted benzene, halogenated diphenyl, halogenated substituted diphenyl, halogenated naphthalene and halogenated substituted naphthalene. a

18. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from .25% to 10% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated benzene, halogenated substituted benzene, halogenated naphthalene, halogenated substituted naphthalene, halogenated diphenyl and halogenated substituted diphenyl.

19. A lubricating composition including a major proportion of a suitable oil base and a minor proportion of a halogenated diphenyl compound.

20. A lubricating or dielectric composition including a major proportion of suitable oil base and a minor proportion of halogenated polyphenyl.

21. A lubricating composition including a major proportion of suitable oil base and a minor proportion of halogenated polyphenyl.

22. A lubricating composition comprising a cluding at least one compound of the class in--.-.

cluding halogenated benzene and halogenated substituted benzene.

24. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from .25% to 10% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated benzene and halogenated substituted benzene.

25. A lubricating composition including a-major proportion of a suitable oil base and a minor propsrtinn of a halogen compound in which substantially all of the halogen present is in the form of at least one compound of the class including halogenated benzene and halogenated substituted benzene.

26. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from to 10% of a halogenated compound in which substantially all or the halogen present is in the form of at least one compound or the class including halogenated benzene and halogenated substituted benzene.

27. A lubricating composition comprising a major proportion of suitable oil base and a minor proportion of at least one compound of the class including halogenated diphenyl and halogenated substituted diphenyl.

28. A lubricating composition including a major proportion of a suitable oil base and a minor proportion of halogen compounds in which substantially all ot'the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated diphenyl and halogenated substituted diphenyl.

29. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from 25% to 10% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated diphenyl and halogenated substituted diphenyl.

v 30. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from 25% to 10% of a halogenated compound in 'which substantially all of the halogen present is in the form of at least one compound of the class including halogenated diphenyl and halogenated substituted diphenyl.

31. A lubricating or dielectric composition in cluding a major proportion of suitable oil base and a minor proportion of chlorinated diphenyl. 32. A lubricating composition including a major proportion of a suitable oil base and a minor proportion of chlorinated diphenyl.

33. A lubricating composition including a major proportion of suitable oil base and a minor proportion less than 20% of chlorinated diphenyl.

34. A lubricating composition comprising a major proportion of a mineral oil base and a minor proportion of less than 20% 01 at least one compound of the class including halogenated naphthalene and halogenated substituted naphthalene.

35. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of less than 20% of halogen c0mD0l1nds in which substantially all of the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated naphthalene and halogenated substituted naphthalene.

36. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from 25% to 10% of a halogen compound in which substantially all of the halogen present is in the form of a halogenated carbon ring compound and including at least one compound of the class including halogenated naphthalene and halogenatedsubstituted naphthalene.

3'7. A lubricating composition including a major proportion of a mineral oil base and a minor proportion of from 25% to 10% of a halogen compound in which substantially all of the halogen present is 'in the form of at least one compound of the class including halogenated naphthalene and halogenated substituted naphthalene. I

38. A lubricating composition including a major proportion of a suitable oil base and a minor proportion less than 20% of chlorinated naphthalene.

CARL F. PRU'I'ION; 

